Home / 12,207.31-16,881.62-11,985.98

Finding the Fourth Proportional to 12,207.31, 16,881.62 and 11,985.98

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Solution

The fourth proportional to 12,207.31, 16,881.62 and 11,985.98 is: 16,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.31 : 16,881.62 = 11,985.98 : x
  2. Step 2: Convert to fraction form
    12,207.31/16,881.62 = 11,985.98/x
  3. Step 3: Cross multiply
    12,207.31x = 16,881.62 × 11,985.98
  4. Step 4: Simplify right side
    12,207.31x = 202,342,615.35
  5. Step 5: Solve for x
    x = 202,342,615.35/12,207.31
  6. Step 6: Final answer
    x = 16,575.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.